Question 1

Morphine, C17H19NO3, is often used to control severe post-operative pain.What is the pH of the solution made by dissolving 25.0 mg of morphine in 100.mL of water? (For morphine, Kb = 1.62 × 10-6.)

Accepted Answer

A)  9.57
B)  9.08
C)  3.79
D)  9.87
E)  4.43F) B) and E)
G) C) and E)

Question 2

When 2.0 × 10-2 mole of nicotinic acid (a monoprotic acid)is dissolved in 350.mL of water, the pH is 3.05.What is the Ka of nicotinic acid?

Accepted Answer

Question 3

Al(OH)3 is an amphoteric hydroxide.Write a balanced ionic equation to show its reaction with KOH.

Accepted Answer

Al(OH)₃ + K...

Question 4

Calculate the pH of a 1.6 M KOH solution.

Accepted Answer

A)  1.60
B)  -0.20
C)  0.20
D)  14.20
E)  13.80F) None of the above
G) C) and D)

Question 5

The pH of coffee is approximately 5.0.How many times greater is the [H+] in coffee than in neutral water?

Accepted Answer

A)  200
B)  100
C)  5.0
D)  1.4
E)  0.01F) B) and E)
G) A) and C)

Question 6

For maleic acid, HOOCCH=CHCOOH, Ka1 = 1.42 × 10-2 and Ka2 = 8.57 × 10-7. What is the concentration of maleate ion (-OOCCH=CHCOO-) in a 0.150 M aqueous solution of maleic acid?

Accepted Answer

A)  8.57 × 10-7 M
B)  2.79 × 10-6 M
C)  1.86 × 10-5 M
D)  4.60 × 10-2 M
E)  1.19 × 10-1 MF) All of the above
G) A) and D)

Question 7

Calculate the concentration of malonate ion (C3H2O42-) in a 0.200 M solution of malonic acid (C3H4O4) .[For malonic acid, Ka1 = 1.4 × 10-3, Ka2 = 2.0 × 10-6.]

Accepted Answer

A)  2.8 × 10-4 M
B)  0.016 M
C)  1.8 × 10-4 M
D)  1.4 × 10-3 M
E)  2.0 × 10-6 MF) A) and E)
G) C) and E)

Question 8

Which of the following solutions is basic?

Accepted Answer

A)  [H3O+] = 1.0 x 10-10 M
B)  [OH-] = 1.0 x 10-10 M
C)  [H3O+] > 1.0 x 10-7 M
D)  [OH-] -10 M
E)  [OH-] = 1.0 x 10-7 MF) C) and E)
G) B) and E)

Question 9

The pH of coffee is approximately 5.0.How many times greater is the [H3O+] in coffee than in tap water having a pH of 8.0?

Accepted Answer

A)  0.62
B)  1.6
C)  30
D)  1,000
E)  1.0 × 104F) A) and B)
G) A) and C)

Question 10

When comparing acid strength of binary acids HX, as X varies within a particular group of the periodic table, which one of these factors dominates in affecting the acid strength?

Accepted Answer

A)  bond strength
B)  electron withdrawing effects
C)  percent ionic character of the H-X bond
D)  solubility
E)  Le Châtelier's principleF) A) and B)
G) C) and D)

Question 11

Calculate the pH of a 0.15 M solution of HOI (Ka = 2.3 x 10-11)

Accepted Answer

Question 12

Which one of these salts will form a basic solution upon dissolving in water?

Accepted Answer

A)  NaI
B)  NaF
C)  NH4NO3
D)  LiBr
E)  Cr(NO3) 3F) A) and C)
G) C) and E)

Question 13

Which one of these net ionic equations represents the reaction of a strong acid with a strong base?

Accepted Answer

A)  H+(aq) + OH-(aq)   →\rarr→ H2O(aq) 
B)  H+(aq) + CH3NH2(aq)   →\rarr→ CH3NH3+(aq) 
C)  OH-(aq) + HCN(aq)   →\rarr→  H2O(aq) + CN-(aq) 
D)  HCN(aq) + CH3NH2(aq)   →\rarr→ CH3NH3+(aq) + CN-(aq)  E) C) and D)
F) A) and B)

Question 14

Which one of these equations represents the reaction of a weak acid with a strong base?

Accepted Answer

A)  H+(aq) + OH-(aq)   →\rarr→ H2O(aq) 
B)  H+(aq) + CH3NH2(aq)   →\rarr→ CH3NH3+(aq) 
C)  OH-(aq) + HCN(aq)   →\rarr→ H2O(aq) + CN-(aq) 
D)  HCN(aq) + CH3NH2(aq)   →\rarr→ CH3NH3+(aq) + CN-(aq)  E) None of the above
F) B) and C)

Question 15

Suppose that ammonia, applied to a field as a fertilizer, is washed into a farm pond containing 3.0 × 106 L of water.If the pH of this pond is found to be 9.81, what volume of liquid ammonia found its way into the pond? [Given: Kb(NH3) = 1.8 × 10-5; the density of liquid ammonia is 0.771 g/cm3]

Accepted Answer

A)  15 L
B)  25 L
C)  11 L
D)  19 L
E)  320 LF) C) and E)
G) C) and D)

Question 16

Which one of these salts will form a neutral solution on dissolving in water?

Accepted Answer

A)  NaCl
B)  KNO2
C)  NaCN
D)  NH4NO3
E)  FeCl3F) A) and D)
G) A) and B)

Question 17

Given the following Kb values, which cation is the strongest acid? b values, which cation is the strongest acid?   A) NH4+ B) C2H5NH3+ C) C5H6N+ D) [C8H11N4O2]+ E) [NH2NH3CO]+" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  NH4+
B)  C2H5NH3+
C)  C5H6N+
D)  [C8H11N4O2]+
E)  [NH2NH3CO]+F) B) and D)
G) A) and D)

Question 18

If the pH of pure water is 7.0, what is the hydroxide ion concentration in pure water?

Accepted Answer

The answer of If the pH of pure water is...

Exam 15: Acids and Bases

If the pH of pure water is 7.0, what is the hydroxide ion concentration in pure water?

Correct Answer
verified

Which one of these equations represents the reaction of a weak acid with a strong base?

Correct Answer
verified

Given the following K_b values, which cation is the strongest acid?

Correct Answer
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For maleic acid, HOOCCH=CHCOOH, K_a1 = 1.42 × 10^-2 and K_a2 = 8.57 × 10^-7. What is the concentration of maleate ion (^-OOCCH=CHCOO^-) in a 0.150 M aqueous solution of maleic acid?

Correct Answer
verified

Which one of these salts will form a neutral solution on dissolving in water?

Correct Answer
verified

Calculate the pH of a 0.15 M solution of HOI (K_a = 2.3 x 10^-11)

Correct Answer
verified

Al(OH)₃ is an amphoteric hydroxide.Write a balanced ionic equation to show its reaction with KOH.

Correct Answer
verified
Al(OH)₃ + K...
View Answer

Morphine, C₁₇H₁₉NO₃, is often used to control severe post-operative pain.What is the pH of the solution made by dissolving 25.0 mg of morphine in 100.mL of water? (For morphine, K_b = 1.62 × 10^-6.)

Correct Answer
verified

Correct Answer
verified

When comparing acid strength of binary acids HX, as X varies within a particular group of the periodic table, which one of these factors dominates in affecting the acid strength?

Correct Answer
verified

Which one of these salts will form a basic solution upon dissolving in water?

Correct Answer
verified

The pH of coffee is approximately 5.0.How many times greater is the [H₃O⁺] in coffee than in tap water having a pH of 8.0?

Correct Answer
verified

Which of the following solutions is basic?

Correct Answer
verified

Which one of these net ionic equations represents the reaction of a strong acid with a strong base?

Correct Answer
verified

Calculate the concentration of malonate ion (C₃H₂O₄^2-) in a 0.200 M solution of malonic acid (C₃H₄O₄) .[For malonic acid, K_a1 = 1.4 × 10^-3, K_a2 = 2.0 × 10^-6.]

Correct Answer
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Calculate the pH of a 1.6 M KOH solution.

Correct Answer
verified

When 2.0 × 10^-2 mole of nicotinic acid (a monoprotic acid)is dissolved in 350.mL of water, the pH is 3.05.What is the K_a of nicotinic acid?

Correct Answer
verified

The pH of coffee is approximately 5.0.How many times greater is the [H⁺] in coffee than in neutral water?

Correct Answer
verified

Exam 15: Acids and Bases

If the pH of pure water is 7.0, what is the hydroxide ion concentration in pure water?

Correct AnswerverifiedShow Answer

Which one of these equations represents the reaction of a weak acid with a strong base?

Correct AnswerverifiedShow Answer

Given the following Kb values, which cation is the strongest acid?

Correct AnswerverifiedShow Answer

For maleic acid, HOOCCH=CHCOOH, Ka1 = 1.42 × 10-2 and Ka2 = 8.57 × 10-7. What is the concentration of maleate ion (-OOCCH=CHCOO-) in a 0.150 M aqueous solution of maleic acid?

Correct AnswerverifiedShow Answer

Which one of these salts will form a neutral solution on dissolving in water?

Correct AnswerverifiedShow Answer

Calculate the pH of a 0.15 M solution of HOI (Ka = 2.3 x 10-11)

Correct AnswerverifiedShow Answer

Al(OH)3 is an amphoteric hydroxide.Write a balanced ionic equation to show its reaction with KOH.

Correct AnswerverifiedAl(OH)3 + K...View AnswerShow Answer

Morphine, C17H19NO3, is often used to control severe post-operative pain.What is the pH of the solution made by dissolving 25.0 mg of morphine in 100.mL of water? (For morphine, Kb = 1.62 × 10-6.)

Correct AnswerverifiedShow Answer

Suppose that ammonia, applied to a field as a fertilizer, is washed into a farm pond containing 3.0 × 106 L of water.If the pH of this pond is found to be 9.81, what volume of liquid ammonia found its way into the pond? [Given: Kb(NH3) = 1.8 × 10-5; the density of liquid ammonia is 0.771 g/cm3]

Correct AnswerverifiedShow Answer

When comparing acid strength of binary acids HX, as X varies within a particular group of the periodic table, which one of these factors dominates in affecting the acid strength?

Correct AnswerverifiedShow Answer

Which one of these salts will form a basic solution upon dissolving in water?

Correct AnswerverifiedShow Answer

The pH of coffee is approximately 5.0.How many times greater is the [H3O+] in coffee than in tap water having a pH of 8.0?

Correct AnswerverifiedShow Answer

Which of the following solutions is basic?

Correct AnswerverifiedShow Answer

Which one of these net ionic equations represents the reaction of a strong acid with a strong base?

Correct AnswerverifiedShow Answer

Calculate the concentration of malonate ion (C3H2O42-) in a 0.200 M solution of malonic acid (C3H4O4) .[For malonic acid, Ka1 = 1.4 × 10-3, Ka2 = 2.0 × 10-6.]

Correct AnswerverifiedShow Answer

Calculate the pH of a 1.6 M KOH solution.

Correct AnswerverifiedShow Answer

When 2.0 × 10-2 mole of nicotinic acid (a monoprotic acid)is dissolved in 350.mL of water, the pH is 3.05.What is the Ka of nicotinic acid?

Correct AnswerverifiedShow Answer

The pH of coffee is approximately 5.0.How many times greater is the [H+] in coffee than in neutral water?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Given the following K_b values, which cation is the strongest acid?

Correct Answer
verified

For maleic acid, HOOCCH=CHCOOH, K_a1 = 1.42 × 10^-2 and K_a2 = 8.57 × 10^-7. What is the concentration of maleate ion (^-OOCCH=CHCOO^-) in a 0.150 M aqueous solution of maleic acid?

Correct Answer
verified

Correct Answer
verified

Calculate the pH of a 0.15 M solution of HOI (K_a = 2.3 x 10^-11)

Correct Answer
verified

Al(OH)₃ is an amphoteric hydroxide.Write a balanced ionic equation to show its reaction with KOH.

Correct Answer
verified
Al(OH)₃ + K...
View Answer

Morphine, C₁₇H₁₉NO₃, is often used to control severe post-operative pain.What is the pH of the solution made by dissolving 25.0 mg of morphine in 100.mL of water? (For morphine, K_b = 1.62 × 10^-6.)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The pH of coffee is approximately 5.0.How many times greater is the [H₃O⁺] in coffee than in tap water having a pH of 8.0?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Calculate the concentration of malonate ion (C₃H₂O₄^2-) in a 0.200 M solution of malonic acid (C₃H₄O₄) .[For malonic acid, K_a1 = 1.4 × 10^-3, K_a2 = 2.0 × 10^-6.]

Correct Answer
verified

Correct Answer
verified

When 2.0 × 10^-2 mole of nicotinic acid (a monoprotic acid)is dissolved in 350.mL of water, the pH is 3.05.What is the K_a of nicotinic acid?

Correct Answer
verified

The pH of coffee is approximately 5.0.How many times greater is the [H⁺] in coffee than in neutral water?

Correct Answer
verified